The AMM Series are economical CATV agile audio/video modulators. They join Blonder Tongue's family of modular headend components and work in conjunction with the MIRC-12V rack chassis and MIPS-12C power supply. Two models are available to cover channel frequencies between 54-806 MHz. The AMML-550 provides channel coverage from 2-78 (54-550 MHz) and the AMMH-806 from channels 55-125 (408-806 MHz). Channel selection is done by easy to use front panel DIP switches. FCC frequency offsets per Docket 21006 are automatic via the units internal pre-programmed micro processor. The AMM Series accept standard audio/video sources such as satellite receivers, television camera, video tape recorders or demodulators. The advanced design ensures access for all level and over-modulation controls via the front panel. The audio pre-emphasis can be disabled internally for use with a BTSC Stereo Encoder.
RF CATV Frequency Range: AMML-550: 54-550 MHz (Ch’s 2-78, 95-99) AMMH-806: 408-806 (Ch’s 55-94, 100-125) AMMH-806: 54-806 (Ch's 2-125) Output Level - Min: 35-45 dBmV, Continuously Variable Aural/Visual Carrier Ratio: -12 to -18 dB Visual Carrier Frequency Tolerance Standard Channels: ±10 kHz FCC Aeronautical Channels (AMML Only): ±5 kHz 4.5 MHz Aural Inter Carrier Frequency: ±150 Hz (max) Spurious Outputs: -60 dBc C/N Ratio In Channel: 60 dB Broadband Noise: -75 dBc Output Impedance: 75 ohm Output Return Loss: 10 dB
Video Input Level: 1.0 V p-p Frequency Response fv-0.5 MHz to fv+4.2 MHz: ±1.0 dB Input Impedance: 75 ohm Input Return Loss: 18 min, dB Differential Phase: 2.0° Differential Gain: 1.0% Group Delay Response: Meets FCC CATV Predistortion Requirements for Color Operation
Stock No. Model Description AMML-550 7761 Modular Agile Audio/Video Modulator, +45 dBmV, 54-550 MHz Agile AMMH-806 7762 Modular Agile Audio/Video Modulator, +45 dBmV, 408-806 MHz Agile AMMH-806 7763 Modular Agile Audio/Video Modulator, +45 dBmV, 54-806 MHz Agile
Audio Input Level: 0.4 to 4.0 V p-p Frequency Range: 30 Hz to 15 kHz, ± 0.5 dB (Exceeds 100 kHz with Pre-emphasis Defeated) Input Impedance: 10k Ohm, Unbalanced Distortion: 30 Hz to 15 KHz 0.6%
General Power Requirements Voltage: 12 VDC @ 155mA Power: 5 VDC @ 265A Temperature: 0° to 50° C
Mechanical Dimensions (WxHxD): 1.15 x 3.5 x 7.5 in 29 x 89 x 191 mm Weight: 0.8 lbs, .36 kg Connectors (Rear Panel) Video Input: “F” Type, Female Audio Input: RCA Phono RF Output: “F” Type Female Power: Header, 3 Pin Controls (Front Panel) Channel Selection: Dip Switches Video Level: Control A/V Ratio: Control Audio Level: Control RF Output Level: Control Indicator (Front Panel) Power ON: LED
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